212221022303 has 8 divisors (see below), whose sum is σ = 212355210048. Its totient is φ = 212086877184.

The previous prime is 212221022297. The next prime is 212221022317. The reversal of 212221022303 is 303220122212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212221022303 - 2²⁸ = 211952586847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221022353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20815175 + ... + 20825367.

It is an arithmetic number, because the mean of its divisors is an integer number (26544401256).

Almost surely, 2^212221022303 is an apocalyptic number.

212221022303 is a deficient number, since it is larger than the sum of its proper divisors (134187745).

212221022303 is a wasteful number, since it uses less digits than its factorization.

212221022303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21313.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212221022303 its reverse (303220122212), we get a palindrome (515441144515).

Subtracting 212221022303 from its reverse (303220122212), we obtain a palindrome (90999099909).

The spelling of 212221022303 in words is "two hundred twelve billion, two hundred twenty-one million, twenty-two thousand, three hundred three".